Inclusion criteria 

The following inclusion criteria apply to COC provision under England’s Tier 1 pharmacy service – but only if the product has been previously initiated in primary care or a sexual health clinic (or equivalent). 

• An individual presents for ongoing supply of oral contraception (the current supply of COC should still be in use)
• Age falls between menarche and up to and including 49 years
• Able to confirm BMI and blood pressure prior to supply (this can be self-reported by the patient).

There is little indication that further services, such as the England Tier 2 service which allows initiation in pharmacy settings, or expanded services in other UK home countries, will deviate far from this.